Meteor Activity Outlook for August 28-September 3, 2010

The Meteor Activity Outlook is a weekly summary of expected meteor activity written by Robert Lunsford, Operations Manager of the American Meteor Society and contributor to this blog. The original unedited version of this week’s Meteor Activity Outlook can be found at the American Meteor Society’s site.

September offers longer nights in the northern hemisphere that tend to be less hazy than those experienced in mid-summer. In the sky, no major showers are visible from either hemisphere but the northern hemisphere enjoys the advantage of higher sporadic rates. Most of the shower activity this month is produced from the Perseus-Aurigid complex active this time of year. These showers rarely produce more than five meteors per hour but still manage to produce most of the shower activity seen this month. Unfortunately the Perseus-Aurigid complex lies too low in the northern sky for southern hemisphere observers to view very well. Video studies have shown that the Southern Taurids are visible as early as September 7th therefore after this date the Antihelion radiant will no longer be listed until the Taurid showers end in December. The Antihelion meteors are still active but their radiant is superimposed upon that of the more numerous Taurids, therefore it is impossible to properly separate these meteors. Observers in the southern hemisphere suffer from some of their lowest rates of the year this month. The Southern Taurid radiant is not too badly placed so observers south can expect to see a little of this activity this month.

During this period the moon reaches its last quarter phase on Wednesday September 1st. At this time the moon will be located ninety degrees west of the sun and will rise near 0100 local daylight time (LDT) for locations in the mid-northern latitudes of the northern hemisphere. This weekend the waning gibbous moon will rise during the late evening hours and remain in the sky the remainder of the night. Meteor observations are difficult under such circumstances unless your sky is transparent. The estimated total hourly rates for evening observers this week is ~3 from the northern hemisphere and ~2 from the southern hemisphere. For morning observers the estimated total hourly rates should be ~12 from the northern hemisphere and ~8 as seen from the southern hemisphere. The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity. During this period, moonlight reduces activity seen during the morning hours.

The radiant positions and rates listed below are exact for Saturday night/Sunday morning August 28/29. These positions do not change greatly day to day so the listed coordinates may be used during this entire period.

As seen from the mid-northern hemisphere (45N) one would expect to see approximately five sporadic meteors per hour during the last hour before dawn as seen from rural observing sites. Evening rates would be near two per hour. As seen from the mid-southern hemisphere (45S), morning rates would be near fourteen per hour as seen from rural observing sites and three per hour during the evening hours. Locations between these two extremes would see activity between the listed figures. Morning rates are slightly reduced due to moonlight.

The following showers are expected to be active this week:

August Draconids (AUD)

The last few remnants from the August Draconids (AUD) may be seen this weekend. The radiant is currently located at 18:44 (281) +63. This position lies in southern Draco, ten degrees east of the second magnitude star Eltanin (Gamma Draconis). With an entry velocity of 23 km/sec. most of these meteors will appear to move slowly. The radiant is best placed near 2200 Local Daylight Time (10pm LDT) when it lies highest in the sky. Due to its high northern declination this shower is not well seen from the southern hemisphere.

Antihelions (ANT)

The wide Antihelion (ANT) radiant is now centered at 23:12 (348) -03. This area of the sky lies in western Pisces, three degrees north of the fourth magnitude star Phi Aquarii. This radiant is best placed near 0200 LDT when it lies on the meridian and is located highest in the sky. Due to the large size of this radiant, any meteor radiating from eastern Aquarius, southern Pegasus, western Pisces, or western Cetus could be a candidate for this shower. Rates at this time should be ~2 per hour no matter your location. With an entry velocity of 30 km/sec., the average Antihelion meteor would be of medium-slow speed.

Alpha Aurigids (AUR)

The Alpha Aurigids (AUR) is the first radiant of the Perseus-Aurigid complex to become active. Maximum occurs on September 1, so rates this weekend will be very low. Even at maximum with a last quarter moon in the sky, rates will most likely not exceed one shower member per hour. The radiant position at maximum is 06:04 (091) +36. This position lies in eastern Auriga only one degree southeast of the third magnitude star Theta Aurigae. This is different than the old position which was close to Capella (Alpha Aurigae). Video results from the 2007 outburst of this shower showed that a majority of the activity came from the radiant near Theta Aurigae. The radiant is best placed near 0500 LDT, when it lies highest in a dark sky. With an entry velocity of 67 km/sec., most activity from this radiant would be swift. Activity can be seen, if it occurs, from the southern tropic regions during the last few hours before dawn.

The list below presents a condensed version of the expected activity this week. Rates and positions are exact for Saturday night/Sunday morning.

Shower Name                RA     DEC   Vel     Rates
                                        km/s   NH    SH
AUG August Draconids     18h 44m  +63    23    <1    <1
ANT Antihelions          23h 12m  -03    30     2     3
AUR Alpha Aurigids       06h 04m  +36    67     1    <1

RA - Right Ascension
DEC - Declination
Vel - Velocity relative to Earth (in km per sec)
Rates - Rate of visible meteors per hour from a
        dark site
NH - Northern Hemisphere
SH - Southern Hemisphere

August 23/24 to 29/30 Meteors

Even though there are no major showers currently active, meteor rates are still elevated as the background ‘Spoadic’ rate is near its annual peak.

Here in Tucson, the monsoon has taken a break after a rather active stretch. Though we are a little above our average rainfall level, the storms have been rather boring this year.

The nights should be clear for the next few days until the wind swings out of the southeast again and the monsoon moisture returns.

Obs  Date(UT)      Time    TOT SPO ANT PER AUD AUR
SAL3 2010-08-30   07h 26m   21  18  2   -   1   0
ALLS 2010-08-30   06h 52m   17  15  2   -   -   2
SAL3 2010-08-29   08h 15m   27  22  2   -   2   1
SAL3 2010-08-28   04h 47m   13  11  1   -   1   -
SAL3 2010-08-27   01h 11m   3   2   0   -   1   -
SAL3 2010-08-26   00h 00m   Bad weather
SAL3 2010-08-25   00h 00m   Bad weather
SAL3 2010-08-24   04h 12m   13  9   2   1   1   -

SAL3 - SALSA3 camera in Tucson (Carl Hergenrother)
ALLS - Near all-sky camera in Tucson (Carl Hergenrother)
VIST - Visual observations from Tucson (Carl Hergenrother)
SDG - Camera in San Diego operated by Bob Lunsford
Time - Total amount of time each camera looked for meteors
TOT - Total number of meteors detected
SPO - Sporadics (meteors not affiliated with any particular meteor shower)
ANT - Antihelions
PER - Perseids
AUD - August Draconids
AUR - Aurigids

Meteor Activity Outlook for August 21-27, 2010

The Meteor Activity Outlook is a weekly summary of expected meteor activity written by Robert Lunsford, Operations Manager of the American Meteor Society and contributor to this blog. The original unedited version of this week’s Meteor Activity Outlook can be found at the American Meteor Society’s site.

Meteor activity kicks into high gear in August as seen from the northern hemisphere. The main reason for this activity surge is the Perseid shower that peaks on August 13. This shower is active most of the month and remains above the level of the sporadic background for a week centered on August 13. The sporadic activity is also increasing as seen from the northern hemisphere and is now nearly double the rates from just three months ago. As seen from south of the equator, meteor rates are still decent but falling rapidly. The sporadic rates seen at the beginning of the month will be twice as high as those seen during the last days of the month. The Perseid radiant does not rise high into the sky as seen in the southern hemisphere so rates from this shower are greatly reduced when compared to the northern hemisphere.

During this period the moon reaches its full quarter phase on Tuesday August 24th. At this time the moon will be located opposite the sun and will be in the sky all night long. This weekend the waxing gibbous moon will set near the start of morning twilight, depending on your latitude. The further north one is located, the earlier the moon will set, allowing more time to observe under dark skies. The estimated total hourly rates for evening observers this week is ~2 no matter your location. For morning observers the estimated total hourly rates should be ~8 from the northern hemisphere and ~6 as seen from the southern hemisphere. The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity. During this period, moonlight reduces activity seen during the morning hours.

The radiant positions and rates listed below are exact for Saturday night/Sunday morning August 21/22. These positions do not change greatly day to day so the listed coordinates may be used during this entire period.

As seen from the mid-northern hemisphere (45N) one would expect to see approximately five sporadic meteors per hour during the last hour before dawn as seen from rural observing sites. Evening rates would be near two per hour. As seen from the mid-southern hemisphere (45S), morning rates would be near fourteen per hour as seen from rural observing sites and three per hour during the evening hours. Locations between these two extremes would see activity between the listed figures. Morning rates are slightly reduced due to moonlight.

The list below presents a condensed version of the expected activity this week. Rates and positions are exact for Saturday night/Sunday morning.

The detailed descriptions will be continued next week when the moonlight is not
as intense.

Shower Name                RA     DEC   Vel     Rates
                                        km/s   NH    SH
AUG August Draconids     18h 28m  +63    23    <1    <1
ANT Antihelions          22h 48m  -06    30     2     3
SDA Delta Aquariids      00h 01m  -10    42    <1    <1
PER Perseids             04h 04m  +60    61     1    <1

RA - Right Ascension
DEC - Declination
Vel - Velocity relative to Earth (in km per sec)
Rates - Rate of visible meteors per hour from a
        dark site
NH - Northern Hemisphere
SH - Southern Hemisphere

August 19/20 to 22/23 Meteors

Nightly meteor rates have been all over the place the past 4 nights. This has nothing to do with the actual rate of meteors and everything to do with the variable clouds plaguing Tucson every night. The monsoon is still in full force even if it never really rains here in town.

Even though we are a week and a half past the Perseid maximum, my cameras are still picking up a handful of  these meteors nearly every night.

I don’t turn on my near all-sky camera every night. The reason is I’m not comfortable operating it in the rain due to some of my “not exactly all-weather” extension cords. So if it’s raining or threatening to rain that night, I leave it off.

Obs  Date(UT)      Time    TOT SPO ANT PER SDA AUD
SAL3 2010-08-23   05h 31m   25  17  3   4   1   0
ALLS 2010-08-23   08h 35m   6   4   0   2   0   -
SAL3 2010-08-22   04h 10m   17  15  2   0   0   0
ALLS 2010-08-22   00h 00m   Not in Operation
SAL3 2010-08-21   01h 23m   2   1   1   0   0   0
ALLS 2010-08-21   00h 0mm   Not in Operation
SAL3 2010-08-20   05h 15m   16  10  1   3   2   0
ALLS 2010-08-20   09h 22m   7   4   0   2   1   0

SAL3 - SALSA3 camera in Tucson (Carl Hergenrother)
ALLS - Near all-sky camera in Tucson (Carl Hergenrother)
VIST - Visual observations from Tucson (Carl Hergenrother)
SDG - Camera in San Diego operated by Bob Lunsford
Time - Total amount of time each camera looked for meteors
TOT - Total number of meteors detected
SPO - Sporadics (meteors not affiliated with any particular meteor shower)
ANT - Antihelions
PER - Perseids
SDA - Southern Delta Aquariids
AUD - August Draconids

August 18/19 Meteors

Another clear night… The Moon is starting to be a problem in the evening hours. For the rest of the week the Moon will set before the prime meteor watching hours in the early morning.

We are near the peak time of the Kappa Cygnids. This shower produces some of the most notable meteors, often ending with a bright flash. Last night didn’t produce any. Maybe we’ll see more tonight.

Obs  Date(UT)      Time    TOT SPO ANT PER SDA ERI KCG AUD
SAL3 2010-08-19   08h 11m   32  20  4   4   0   2   0   2
ALLS 2010-08-19   07h 35m   10  4   0   5   0   1   0   0

SAL3 - SALSA3 camera in Tucson (Carl Hergenrother)
ALLS - Near all-sky camera in Tucson (Carl Hergenrother)
VIST - Visual observations from Tucson (Carl Hergenrother)
SDG - Camera in San Diego operated by Bob Lunsford
Time - Total amount of time each camera looked for meteors
TOT - Total number of meteors detected
SPO - Sporadics (meteors not affiliated with any particular meteor shower)
ANT - Antihelions
PER - Perseids
SDA - Southern Delta Aquariids
ERI - Eta Eridanids
KCG - Kappa Cygnids
AUD - August Draconids

August 15/16 to 17/18 Meteors

After 3 nights of mostly clouds, last night was clear enough to allow some good video meteor watching. Perseids rates are done big time now that we are a few days past maximum. None of the other active showers appear to be producing much.

Obs  Date(UT)      Time    TOT SPO ANT PER SDA ERI KCG AUD
SAL3 2010-08-18   06h 07m   26  17  3   5   0   0   1   0
SAL3 2010-08-17   00h 19m   1   0   0   1   0   0   0   0
SAL3 2010-08-16   00h 00m   Clouds/Rain all night
SAL3 2010-08-15   02h 30m   3   2   0   1   0   0   0   0

SAL3 - SALSA3 camera in Tucson (Carl Hergenrother)
ALLS - Near all-sky camera in Tucson (Carl Hergenrother)
VIST - Visual observations from Tucson (Carl Hergenrother)
SDG - Camera in San Diego operated by Bob Lunsford
Time - Total amount of time each camera looked for meteors
TOT - Total number of meteors detected
SPO - Sporadics (meteors not affiliated with any particular meteor shower)
ANT - Antihelions
PER - Perseids
SDA - Southern Delta Aquariids
BPE - Beta Perseids
ERI - Eta Eridanids
KCG - Kappa Cygnids
AUD - August Draconids

The rains have returned

Not much to report here in Tucson the past 2 nights as the monsoon rains have returned. Until the weather clears enough to allow meteor observations, the daily reports will be intermittent.

Meteor Activity Outlook for August 14-20, 2010

The Meteor Activity Outlook is a weekly summary of expected meteor activity written by Robert Lunsford, Operations Manager of the American Meteor Society and contributor to this blog. The original unedited version of this week’s Meteor Activity Outlook can be found at the American Meteor Society’s site.

Meteor activity kicks into high gear in August as seen from the northern hemisphere. The main reason for this activity surge is the Perseid shower that peaks on August 13. This shower is active most of the month and remains above the level of the sporadic background for a week centered on August 13. The sporadic activity is also increasing as seen from the northern hemisphere and is now nearly double the rates from just three months ago. As seen from south of the equator, meteor rates are still decent but falling rapidly. The sporadic rates seen at the beginning of the month will be twice as high as those seen during the last days of the month. The Perseid radiant does not rise high into the sky as seen in the southern hemisphere so rates from this shower are greatly reduced when compared to the northern hemisphere.

During this period the moon reaches its first quarter phase on Monday August 16th. At this time the moon will be located ninety degrees east of the sun and will set near 0100 local daylight time (LDT) for locations in the mid-northern latitudes of the northern hemisphere. This weekend the waxing crescent moon will set just prior to midnight for the locations mentioned above, and will be gone from the sky during the active morning hours. The estimated total hourly rates for evening observers this week is ~3 no matter your location. For morning observers the estimated total hourly rates should be ~35 from the northern hemisphere and ~20 as seen from the southern hemisphere. The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity. During this period, moonlight reduces activity seen during the morning hours.

The radiant positions and rates listed below are exact for Saturday night/Sunday morning August 14/15. These positions do not change greatly day to day so the listed coordinates may be used during this entire period.

The following showers are expected to be active this week:

August Draconids (AUG)

Activity from the August Draconids (AUD) can be first detected near August 11th from a radiant located at 18:14 (273) +62. This position lies in southern Draco, ten degrees north of the second magnitude star Eltanin (Gamma Draconis). Maximum activity is not predicted until August 21st so current rates would be low, <1 per night. With an entry velocity of 23 km/sec. most of these meteors will appear to move slowly. The radiant is best placed near 2200 Local Daylight Time (10pm LDT) when it lies highest in the sky. Due to its high northern declination this shower is not well seen from the southern hemisphere.

Kappa Cygnids (KCG)

The Kappa Cygnids (KCG) are active from a wide radiant located at 19:06 (287) +52. This position is further south than previous publications. It has been updated through the use of video observations by the International Meteor Organization. The new location lies on the Cygnus/Draco border, three degrees southwest of the faint star Kappa Cygni. Maximum activity is now predicted to occur on August 14th. Current rates would be ~2 per hour from the northern hemisphere and <1 shower member per hour from south of the equator. With an entry velocity of 23 km/sec. most of these meteors will appear to travel slower than average. The radiant is best placed near 2300 LDT (11pm LDT) when it lies nearly overhead for much of the Northern Hemisphere. Due to its high northern declination this activity is not well seen from the southern hemisphere.

Antihelions (ANT)

The wide Antihelion (ANT) radiant is now centered at 22:20 (335) -08. This area of the sky lies in central Aquarius, 3 degrees southeast of the 4th magnitude Theta Aquarii. This radiant is best placed near 0200 local daylight time (LDT) when it lies on the meridian and is located highest in the sky. Due to the large size of this radiant, any meteor radiating from northern Piscis Austrinus, Capricornus, Aquarius, or southern Pegasus could be a candidate for this shower. Rates at this time should be ~2 per hour no matter your location. With an entry velocity of 30 km/sec., the average Antihelion meteor would be of medium-slow speed.

Delta Aquariids (SDA)

The Delta Aquariids (SDA) reach maximum activity on Friday July 30th. The shower is still active from a radiant located at 23:36 (354) -12. This position lies in eastern Aquarius, 3 degrees northwest of the 4th magnitude star Omega2 Aquarii. The radiant is best placed near 0300 LDT, when it lies highest in the sky. The optimal latitudes for viewing this shower lie in the southern tropics where the radiant passes overhead. With an entry velocity of 42 km/sec., most activity from this radiant would be of average velocities. Expect rates of <1 per hour north of the equator and 1 per hour from the southern hemisphere.

August Piscids (AUP)

A new shower discovered by Sirko Molau and Juergen Rendtel from the IMO’s video database are the August Piscids (AUP). This shower is only active on eight nights from August 2-9 with maximum activity occurring on the 4th. At maximum, the radiant is located at 00:44 (011) +19. This area of the sky is located in northern Pisces, 10 degrees north of the 4th magnitude star Delta Piscium. This radiant is best placed during the last hour before dawn when it lies highest in a dark sky. Hourly rates are expected to be <1. With an entry velocity of 66 km/sec., the average August Piscid meteor would be swift.

Eridanids (ERI)

A second new shower discovered by Sirko Molau and Juergen Rendtel from the IMO’s video database are the Eridanids (ERI). This shower is active from August 4th through the 18th with maximum activity occurring on the 9th. Hourly rates could reach ~2 per hour at maximum. The radiant is currently located at 03:12 (048) -09. This shower was observed by me during the Perseid maximum last week. The radiant is currently located at 03:12 (048) -09. This area of the sky is located in western Eridanus, 3 degrees east of the faint star Eta Eridani. This radiant is best placed during the last hour before dawn when it lies highest in a dark sky. Hourly rates are expected to be <1. With an entry velocity of 64 km/sec., the average Eridanid meteor would be swift.

Perseids (PER)

The Perseids (PER) reached maximum activity on Friday August 13th with zenith hourly rates (ZHR’s) near 90. They are still active from a radiant located at 03:24 (051) +58. This position actually lies in southern Camelopardalis, eight degrees north of the second magnitude star Mirfak (Alpha Persei). The radiant is best placed during the last hour before the start of morning twilight when it lies highest in a dark sky. Current rates would be ~20 per hour, falling to <10 by the end of the week. Activity from the Perseids is not well seen south south of the equator and completely invisible south of 40 degrees south latitude. With an entry velocity of 61 km/sec., most activity from this radiant would be swift.

As seen from the mid-northern hemisphere (45N) one would expect to see approximately five sporadic meteors per hour during the last hour before dawn as seen from rural observing sites. Evening rates would be near two per hour. As seen from the mid-southern hemisphere (45S), morning rates would be near fourteen per hour as seen from rural observing sites and three per hour during the evening hours. Locations between these two extremes would see activity between the listed figures. Morning rates are slightly reduced due to moonlight.

The list below presents a condensed version of the expected activity this week. Rates and positions are exact for Saturday night/Sunday morning.

Shower Name                RA     DEC   Vel     Rates
                                        km/s   NH    SH
AUG August Draconids     18h 14m  +61    23    <1    <1
KCG Kappa Cygnids        19h 06m  +52    23     1    <1
ANT Antihelions          22h 20m  -08    30     2     3
SDA Delta Aquariids      23h 36m  -12    42     1     2
ERI Eridanids            03h 12m  -09    64     2     2
PER Perseids             03h 24m  +58    61     3     2

RA - Right Ascension
DEC - Declination
Vel - Velocity relative to Earth (in km per sec)
Rates - Rate of visible meteors per hour from a
        dark site
NH - Northern Hemisphere
SH - Southern Hemisphere

August 13/14 Meteors (the night after the Perseids peak)

Even though the Perseids are now past their peak, rates were still strong last night (comparable and maybe even better than those from the 11th when visual observers recorded ZHRs of ~30).

The Perseids will continue to decrease in intensity and should be back to very low rates of less than 10 per hour within a couple of days.

The monsoon is still on hiatus here but that should change by Monday. Hopefully I can get another good night or two. Then, bring on the rain!

Obs  Date(UT)      Time    TOT SPO ANT PER SDA BPE ERI KCG AUD
SAL3 2010-08-14   07h 24m   49  10  1   32  2   2   1   1   0
ALLS 2010-08-14   09h 24m   29  4   0   22  2   1   0   1   0

SAL3 - SALSA3 camera in Tucson (Carl Hergenrother)
ALLS - Near all-sky camera in Tucson (Carl Hergenrother)
VIST - Visual observations from Tucson (Carl Hergenrother)
SDG - Camera in San Diego operated by Bob Lunsford
Time - Total amount of time each camera looked for meteors
TOT - Total number of meteors detected
SPO - Sporadics (meteors not affiliated with any particular meteor shower)
ANT - Antihelions
PER - Perseids
SDA - Southern Delta Aquariids
BPE - Beta Perseids
ERI - Eta Eridanids
KCG - Kappa Cygnids
AUD - August Draconids

August 12/13 Meteors (and the Peak of the 2010 Perseids)

Last night marked the peak of the Perseids and they didn’t disappoint. Here in Tucson it was clear for yet another night. Quite a remarkable accomplishment considering it should be the middle of the monsoon. Some light cirrus did drift over the area from the south but it really wasn’t thick enough to hamper observing until the very end of the night.

I spent a total of ~2.25 hrs watching the shower spread over 3 separate outings. The plan was to get some sleep and then wake up early in the morning and drive to darker skies on the edge of town. Instead my wife and I decided to go out for an hour right before we went to bed. Though the radiant was very low we were hoping to catch a few atmosphere grazing Perseids. Even though the limiting magnitude was only +5.4 I counted 15 Perseids and 4 non-Perseids over the hour. That worked out to an average ZHR of ~80 over the course of the session. Pretty good.

After a bit of sleep I went back out for another 0.8 hours of observing. By now there was a lot of thin cirrus to the south. Usually the sky is much darker in the morning at my house but the cirrus kept the limiting magnitude at +5.4. During this session I counted 10 Perseids and 2 non-Perseids. This works out to an average ZHR of only 35. For the night of the peak, this is disappointing.

Deciding that I needed to get away from the city lights, I drove out to the edge of town where the limiting magnitude was +5.8. Luckily the cirrus hadn’t spread to the northern sky so I set up shop looking in that direction. The next 0.5 hours or so saw roughly a Perseid per minute with 33 Perseids and 4 non-Perseids being seen. This corresponds to an average ZHR of ~120 which is almost as good as you can expect from the Perseids. It will be nice to see if other observers noticed such high rates at this time (maybe Salvador and Bob).

Though many observations have yet to filed, preliminary results from last night suggest that the ZHR varied from 50 to 100 (see IMO ZHR Live).

Since I was forced by the cirrus to look directly at the radiant I did notice a handful of Perseids that appeared to radiate from an area a few degrees to the south of the radiant (near alpha Persei). I need to take a closer look at my video data to see if it confirms my impression.

My shallow wide-field and deep small-field cameras picked up 91 and 124 meteors last night of which 80 and 91 were Perseids. SALSA3’s 124 meteors is new personal single camera record for me. This beats January 2/3, 2009’s old record of 107 meteors during the peak of the Quadrantids.

If history is any guide, Perseid rates fall off rapidly after the night of maximum. ZHRs of “only” 20-30 should be expected tonight.

Obs  Date(UT)      Time    TOT SPO ANT PER SDA BPE ERI KCG AUD
SAL3 2010-08-13   08h 16m  124  25  2   91  3   0   1   0   2
ALLS 2010-08-13   08h 33m   91  2   0   80  2   4   2   1   0
VIST 2010-08-13   02h 17m   68  10  -   58  - (LM = +5.4,+5.8)

SAL3 - SALSA3 camera in Tucson (Carl Hergenrother)
ALLS - Near all-sky camera in Tucson (Carl Hergenrother)
VIST - Visual observations from Tucson (Carl Hergenrother)
SDG - Camera in San Diego operated by Bob Lunsford
Time - Total amount of time each camera looked for meteors
TOT - Total number of meteors detected
SPO - Sporadics (meteors not affiliated with any particular meteor shower)
ANT - Antihelions
PER - Perseids
SDA - Southern Delta Aquariids
BPE - Beta Perseids
ERI - Eta Eridanids
KCG - Kappa Cygnids
AUD - August Draconids
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